WO2012141506A3 - 터치 정확도 향상을 위한 정전용량 측정 장치 - Google Patents

터치 정확도 향상을 위한 정전용량 측정 장치 Download PDF

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Publication number
WO2012141506A3
WO2012141506A3 PCT/KR2012/002779 KR2012002779W WO2012141506A3 WO 2012141506 A3 WO2012141506 A3 WO 2012141506A3 KR 2012002779 W KR2012002779 W KR 2012002779W WO 2012141506 A3 WO2012141506 A3 WO 2012141506A3
Authority
WO
WIPO (PCT)
Prior art keywords
capacitance
measuring device
capacitance measuring
touch
reference value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2012/002779
Other languages
English (en)
French (fr)
Other versions
WO2012141506A2 (ko
Inventor
명준형
사두환
이진국
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IMAGIS TECHNOLOGY
Original Assignee
IMAGIS TECHNOLOGY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IMAGIS TECHNOLOGY filed Critical IMAGIS TECHNOLOGY
Publication of WO2012141506A2 publication Critical patent/WO2012141506A2/ko
Publication of WO2012141506A3 publication Critical patent/WO2012141506A3/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04186—Touch location disambiguation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Position Input By Displaying (AREA)
  • Electronic Switches (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

본 발명에서 제안하고 있는 터치 정확도 향상을 위한 정전용량 측정 장치에 따르면, 비교부를 포함하여 정전용량 측정부에서 측정된 정전용량과 미리 정해진 제1 기준 값 또는 제2 기준 값을 비교하여 측정된 정전용량이 기준 값에 대해 미리 정해진 조건을 만족할 경우에 유효한 터치 신호로 판단함으로써, 효율적인 터치 유무 판단을 할 수 있고 노이즈에 의해 정전용량이 변화하더라도 실질적인 터치가 일어나지 않은 것으로 판단할 수 있어 정확성이 높다.
PCT/KR2012/002779 2011-04-13 2012-04-13 터치 정확도 향상을 위한 정전용량 측정 장치 Ceased WO2012141506A2 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110034493A KR101098163B1 (ko) 2011-04-13 2011-04-13 터치 정확도 향상을 위한 정전용량 측정 장치
KR10-2011-0034493 2011-04-13

Publications (2)

Publication Number Publication Date
WO2012141506A2 WO2012141506A2 (ko) 2012-10-18
WO2012141506A3 true WO2012141506A3 (ko) 2013-01-10

Family

ID=45506873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/002779 Ceased WO2012141506A2 (ko) 2011-04-13 2012-04-13 터치 정확도 향상을 위한 정전용량 측정 장치

Country Status (2)

Country Link
KR (1) KR101098163B1 (ko)
WO (1) WO2012141506A2 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101509354B1 (ko) 2013-12-12 2015-04-07 대성전기공업 주식회사 정전용량 방식의 터치 센서 및 그의 노이즈 검출 방법
KR102124622B1 (ko) * 2018-06-22 2020-06-18 주식회사 하이딥 터치입력장치의 공통모드노이즈 제거 방법 및 동일 방법으로 구현된 터치입력장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050055156A (ko) * 2003-12-05 2005-06-13 주식회사 이에스에스디 기준값 자동 설정 방법을 이용한 디지털 센서 감지 방법및 장치
KR100794928B1 (ko) * 2006-12-29 2008-01-15 주식회사 켐트로닉스 연속 터치의 인식이 가능한 터치 감지 장치 및 방법
KR20090030114A (ko) * 2007-09-19 2009-03-24 주식회사 포인칩스 터치센서의 정전용량 측정회로
KR20090055532A (ko) * 2009-04-20 2009-06-02 주식회사 포인칩스 터치센서의 정전용량 측정회로

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050055156A (ko) * 2003-12-05 2005-06-13 주식회사 이에스에스디 기준값 자동 설정 방법을 이용한 디지털 센서 감지 방법및 장치
KR100794928B1 (ko) * 2006-12-29 2008-01-15 주식회사 켐트로닉스 연속 터치의 인식이 가능한 터치 감지 장치 및 방법
KR20090030114A (ko) * 2007-09-19 2009-03-24 주식회사 포인칩스 터치센서의 정전용량 측정회로
KR20090055532A (ko) * 2009-04-20 2009-06-02 주식회사 포인칩스 터치센서의 정전용량 측정회로

Also Published As

Publication number Publication date
WO2012141506A2 (ko) 2012-10-18
KR101098163B1 (ko) 2011-12-22

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